Understanding Ohm's Law and Circuits

What is Ohm's Law?

• By multiplying all resistances

• By adding all resistances

• By dividing all resistances

• By subtracting all resistances

In a parallel circuit, what happens to the total resistance as more resistors are added?

• It increases

• It decreases

• It stays the same

• It doubles

What is the unit of electrical resistance?

• Volt

• Ampere

• Ohm

• Watt

In a series circuit, the current is:

• Different in each component

• The same through all components

• Zero

• Only in the first resistor

In a parallel circuit, the voltage across each branch is:

• Different for each branch

• The same for each branch

• Zero

• Double the supply voltage